Reports

Nitric Oxide Air Pollution: Detection by Optoacoustic Spectroscopy

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Science  02 Jul 1971:
Vol. 173, Issue 3991, pp. 45-47
DOI: 10.1126/science.173.3991.45

Abstract

Nitric oxide is detected by a new technique in which tunable infrared radiation from a spin-flip Raman laser is used to measure the absorption spectrumn of a gas sample by optoacoustic spectroscopy. This technique is sensitive enough to detect a concentration of 0.01 part per million of nitric oxide pollution in air samples.